#23088: Clarify null termination of bytes and strings in C API.
Patch by Martin Panter, reviewed by Serhiy Storchaka and R. David Murray.
diff --git a/Doc/c-api/bytearray.rst b/Doc/c-api/bytearray.rst
index 8202205..41b6e3c 100644
--- a/Doc/c-api/bytearray.rst
+++ b/Doc/c-api/bytearray.rst
@@ -64,7 +64,8 @@
.. c:function:: char* PyByteArray_AsString(PyObject *bytearray)
Return the contents of *bytearray* as a char array after checking for a
- *NULL* pointer.
+ *NULL* pointer. The returned array always has an extra
+ null byte appended.
.. c:function:: int PyByteArray_Resize(PyObject *bytearray, Py_ssize_t len)